As always, I forgot to add the files
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gral@who.net
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126
Effects/forest.eff
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126
Effects/forest.eff
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<?xml version="1.0" encoding="utf-8"?>
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<PropertyList>
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<name>Effects/forest</name>
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<inherits-from>Effects/terrain-default</inherits-from>
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<parameters>
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<texture n="2">
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<image>Textures/Terrain/forest.png</image>
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<filter>linear-mipmap-linear</filter>
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<wrap-s>repeat</wrap-s>
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<wrap-t>repeat</wrap-t>
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<internal-format>normalized</internal-format>
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</texture>
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<texture n="3">
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<image>Textures/Terrain/forest-colors.png</image>
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<filter>linear-mipmap-linear</filter>
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<wrap-s>mirror</wrap-s>
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<internal-format>normalized</internal-format>
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</texture>
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<texture n="4">
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<image>Textures/Terrain/forest.png</image>
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<filter>linear-mipmap-linear</filter>
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<wrap-s>repeat</wrap-s>
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<wrap-t>repeat</wrap-t>
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<internal-format>normalized</internal-format>
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</texture>
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</parameters>
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<technique n="9">
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<predicate>
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<and>
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<property>/sim/rendering/crop-shader</property>
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<property>/sim/rendering/shader-effects</property>
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<or>
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<less-equal>
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<value type="float">2.0</value>
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<glversion/>
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</less-equal>
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<and>
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<extension-supported>GL_ARB_shader_objects</extension-supported>
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<extension-supported>GL_ARB_shading_language_100</extension-supported>
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<extension-supported>GL_ARB_vertex_shader</extension-supported>
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<extension-supported>GL_ARB_fragment_shader</extension-supported>
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</and>
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</or>
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</and>
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</predicate>
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<pass>
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<lighting>true</lighting>
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<!-- Use material values that are either inherited from the
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terrain-default effect or supplied by an effect derived
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from this one e.g., one created in the materials library. -->
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<material>
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<ambient><use>material/ambient</use></ambient>
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<diffuse><use>material/diffuse</use></diffuse>
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<specular><use>material/specular</use></specular>
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<color-mode>ambient-and-diffuse</color-mode>
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</material>
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<blend><use>transparent</use></blend>
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<alpha-test><use>transparent</use></alpha-test>
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<shade-model>smooth</shade-model>
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<cull-face>back</cull-face>
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<render-bin>
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<bin-number><use>render-bin/bin-number</use></bin-number>
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<bin-name><use>render-bin/bin-name</use></bin-name>
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</render-bin>
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<texture-unit>
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<unit>0</unit>
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<type>noise</type>
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</texture-unit>
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<texture-unit>
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<unit>1</unit>
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<image><use>texture[2]/image</use></image>
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<filter><use>texture[2]/filter</use></filter>
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<wrap-s><use>texture[2]/wrap-s</use></wrap-s>
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<wrap-t><use>texture[2]/wrap-t</use></wrap-t>
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<internal-format>
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<use>texture[2]/internal-format</use>
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</internal-format>
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</texture-unit>
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<texture-unit>
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<unit>3</unit>
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<type>1d</type>
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<image><use>texture[3]/image</use></image>
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<filter><use>texture[3]/filter</use></filter>
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<wrap-s><use>texture[3]/wrap-s</use></wrap-s>
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<internal-format>
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<use>texture[3]/internal-format</use>
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</internal-format>
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</texture-unit>
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<texture-unit>
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<unit>2</unit>
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<image><use>texture[4]/image</use></image>
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<filter><use>texture[4]/filter</use></filter>
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<wrap-s><use>texture[4]/wrap-s</use></wrap-s>
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<wrap-t><use>texture[4]/wrap-t</use></wrap-t>
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<internal-format>
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<use>texture[4]/internal-format</use>
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</internal-format>
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</texture-unit>
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<program>
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<vertex-shader>Shaders/forest.vert</vertex-shader>
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<fragment-shader>Shaders/forest.frag</fragment-shader>
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</program>
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<uniform>
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<name>NoiseTex</name>
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<type>sampler-3d</type>
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<value type="int">0</value>
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</uniform>
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<uniform>
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<name>SampleTex</name>
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<type>sampler-2d</type>
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<value type="int">1</value>
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</uniform>
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<uniform>
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<name>SampleTex2</name>
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<type>sampler-2d</type>
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<value type="int">2</value>
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</uniform>
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<uniform>
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<name>ColorsTex</name>
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<type>sampler-1d</type>
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<value type="int">3</value>
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</uniform>
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</pass>
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</technique>
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</PropertyList>
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72
Shaders/forest.frag
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72
Shaders/forest.frag
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#version 120
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varying vec4 rawpos;
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varying vec4 ecPosition;
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varying vec3 VNormal;
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varying vec3 Normal;
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uniform sampler3D NoiseTex;
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uniform sampler2D SampleTex;
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uniform sampler1D ColorsTex;
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uniform sampler2D SampleTex2;
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const float scale = 1.0;
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void main (void)
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{
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const float snowlevel=2000.0;
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vec4 basecolor = texture2D(SampleTex, rawpos.xy*0.000144);
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vec4 basecolor2 = texture2D(SampleTex2, rawpos.xy*0.000144);
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basecolor = texture1D(ColorsTex, basecolor.r+0.0);
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vec4 noisevec = texture3D(NoiseTex, (rawpos.xyz)*0.01*scale);
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vec4 nvL = texture3D(NoiseTex, (rawpos.xyz)*0.00066*scale);
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float fogFactor;
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float fogCoord = ecPosition.z;
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const float LOG2 = 1.442695;
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fogFactor = exp2(-gl_Fog.density * gl_Fog.density * fogCoord * fogCoord * LOG2);
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float biasFactor = exp2(-0.00000002 * fogCoord * fogCoord * LOG2);
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float n=0.12;
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n += nvL[0]*0.4;
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n += nvL[1]*0.6;
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n += nvL[2]*2.0;
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n += nvL[3]*4.0;
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n += noisevec[0]*0.1;
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n += noisevec[1]*0.4;
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n += noisevec[2]*0.8;
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n += noisevec[3]*2.1;
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n = mix(0.6, n, biasFactor);
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vec4 c1;
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c1 = basecolor * vec4(smoothstep(-1.3, 0.5, n), smoothstep(-1.3, 0.5, n), smoothstep(-2.0, 0.9, n), 0.0);
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vec4 c2;
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c2 = basecolor2 * vec4(smoothstep(-1.3, 0.5, n), smoothstep(-1.3, 0.5, n), smoothstep(-2.0, 0.9, n), 0.0);
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//draw floor where !steep, and another blurb for smoothing transitions
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vec4 c3, c4, c5;
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c3 = mix(vec4(n-0.88, n-0.14, -n, 0.0), c1, smoothstep(0.990, 0.970, abs(normalize(Normal).z)+nvL[2]*1.3));
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c4 = mix(vec4(n-0.88, n-0.74, -n, 0.0), c1, smoothstep(0.990, 0.890, abs(normalize(Normal).z)+nvL[2]*0.9));
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c5 = mix(c3, c4, 1.0);
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//mix floor with texture right way
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c1 = mix(c2, c5, clamp(0.65, n*0.5, 0.4));
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vec3 diffuse = gl_Color.rgb * max(0.4, dot(VNormal, gl_LightSource[0].position.xyz));
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vec4 ambient_light = gl_LightSource[0].diffuse * vec4(diffuse, 1.0);
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c1 *= ambient_light;
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vec4 finalColor = c1;
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if(gl_Fog.density == 1.0)
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fogFactor=1.0;
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gl_FragColor = mix(gl_Fog.color ,finalColor, fogFactor);
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}
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22
Shaders/forest.vert
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Shaders/forest.vert
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#version 120
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varying vec4 rawpos;
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varying vec4 ecPosition;
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varying vec3 VNormal;
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varying vec3 Normal;
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//varying vec4 constantColor;
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void main(void)
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{
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gl_TexCoord[0] = gl_MultiTexCoord0;
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rawpos = gl_Vertex;
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ecPosition = gl_ModelViewMatrix * gl_Vertex;
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VNormal = normalize(gl_NormalMatrix * gl_Normal);
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Normal = normalize(gl_Normal);
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gl_FrontColor = gl_Color;
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//constantColor = gl_FrontMaterial.emission
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// + gl_Color * (gl_LightModel.ambient + gl_LightSource[0].ambient);
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gl_Position = ftransform();
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}
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BIN
Textures/Terrain/forest-colors.png
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BIN
Textures/Terrain/forest-colors.png
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After Width: | Height: | Size: 525 B |
BIN
Textures/Terrain/forest.png
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BIN
Textures/Terrain/forest.png
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After Width: | Height: | Size: 852 KiB |
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