HDR: Add support for osgText
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Fernando García Liñán
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e8c75e7599
commit
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3 changed files with 182 additions and 0 deletions
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@ -20,4 +20,111 @@
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</uniform>
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</pass>
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</technique>
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<technique n="129">
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<scheme>hdr-forward</scheme>
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<pass>
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<!-- Reverse floating point depth buffer -->
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<depth>
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<function>gequal</function>
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<near>1.0</near>
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<far>0.0</far>
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<write-mask>false</write-mask>
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</depth>
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<blend>1</blend>
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<rendering-hint>transparent</rendering-hint>
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<cull-face>back</cull-face>
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<program>
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<vertex-shader>Shaders/HDR/text.vert</vertex-shader>
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<vertex-shader>Shaders/HDR/aerial_perspective.glsl</vertex-shader>
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<fragment-shader>Shaders/HDR/text.frag</fragment-shader>
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<fragment-shader>Shaders/HDR/color.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/math.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/shading_transparent.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/surface.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/ibl.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/shadows.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/sun.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/aerial_perspective.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/atmos_spectral.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/clustered.glsl</fragment-shader>
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<fragment-shader>Shaders/HDR/exposure.glsl</fragment-shader>
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</program>
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<uniform>
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<name>glyph_tex</name>
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<type>sampler-2d</type>
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<value type="int">0</value>
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</uniform>
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<!-- shadows.glsl -->
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<uniform>
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<name>shadow_tex</name>
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<type>sampler-2d-shadow</type>
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<value type="int">10</value>
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</uniform>
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<uniform>
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<name>debug_shadow_cascades</name>
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<type>bool</type>
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<value><use>show-shadow-cascades</use></value>
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</uniform>
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<uniform>
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<name>normal_bias</name>
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<type>float</type>
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<value><use>normal-bias</use></value>
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</uniform>
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<uniform>
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<name>sss_enabled</name>
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<type>bool</type>
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<value><use>sss-enabled</use></value>
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</uniform>
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<uniform>
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<name>sss_step_count</name>
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<type>int</type>
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<value><use>sss-step-count</use></value>
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</uniform>
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<uniform>
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<name>sss_max_distance</name>
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<type>float</type>
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<value><use>sss-max-distance</use></value>
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</uniform>
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<uniform>
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<name>sss_depth_bias</name>
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<type>float</type>
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<value><use>sss-depth-bias</use></value>
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</uniform>
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<!-- ibl.glsl -->
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<uniform>
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<name>dfg_tex</name>
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<type>sampler-2d</type>
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<value type="int">8</value>
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</uniform>
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<uniform>
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<name>prefiltered_envmap_tex</name>
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<type>sampler-cube</type>
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<value type="int">9</value>
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</uniform>
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<!-- aerial_perspective.glsl -->
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<uniform>
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<name>aerial_perspective_tex</name>
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<type>sampler-2d</type>
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<value type="int">11</value>
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</uniform>
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<!-- sun.glsl -->
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<uniform>
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<name>transmittance_tex</name>
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<type>sampler-2d</type>
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<value type="int">12</value>
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</uniform>
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<!-- exposure.glsl -->
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<uniform>
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<name>lum_tex</name>
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<type>sampler-2d</type>
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<value type="int">14</value>
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</uniform>
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<uniform>
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<name>exposure_compensation</name>
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<type>float</type>
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<value><use>exposure-compensation</use></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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44
Shaders/HDR/text.frag
Normal file
44
Shaders/HDR/text.frag
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@ -0,0 +1,44 @@
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#version 330 core
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layout(location = 0) out vec4 fragColor;
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in VS_OUT {
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vec2 texcoord;
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vec3 vertex_normal;
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vec3 view_vector;
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vec4 ap_color;
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} fs_in;
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uniform sampler2D glyph_tex;
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uniform mat4 osg_ViewMatrixInverse;
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uniform vec4 fg_Viewport;
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// XXX: We should be able to modify these through material animations
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const vec3 TEXT_BASE_COLOR = vec3(1.0);
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const float TEXT_METALLIC = 0.0;
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const float TEXT_ROUGHNESS = 1.0;
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const vec3 TEXT_EMISSION = vec3(1.0);
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// color.glsl
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vec3 eotf_inverse_sRGB(vec3 srgb);
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// shading_transparent.glsl
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vec3 eval_lights_transparent(
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vec3 base_color, float metallic, float roughness, float occlusion,
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vec3 emissive, vec3 P, vec3 N, vec3 V, vec2 uv, vec4 ap,
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mat4 view_matrix_inverse);
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void main()
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{
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float alpha = texture(glyph_tex, fs_in.texcoord).a;
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vec3 N = normalize(fs_in.vertex_normal);
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vec3 V = normalize(-fs_in.view_vector);
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vec2 uv = (gl_FragCoord.xy - fg_Viewport.xy) / fg_Viewport.zw;
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vec3 color = eval_lights_transparent(
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TEXT_BASE_COLOR, TEXT_METALLIC, TEXT_ROUGHNESS, 1.0, TEXT_EMISSION,
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fs_in.view_vector, N, V, uv, fs_in.ap_color, osg_ViewMatrixInverse);
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fragColor = vec4(color, alpha);
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}
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31
Shaders/HDR/text.vert
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31
Shaders/HDR/text.vert
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@ -0,0 +1,31 @@
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#version 330 core
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layout(location = 0) in vec4 pos;
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layout(location = 1) in vec3 normal;
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layout(location = 3) in vec4 multitexcoord0;
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out VS_OUT {
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vec2 texcoord;
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vec3 vertex_normal;
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vec3 view_vector;
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vec4 ap_color;
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} vs_out;
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uniform mat4 osg_ModelViewMatrix;
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uniform mat4 osg_ModelViewProjectionMatrix;
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uniform mat3 osg_NormalMatrix;
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uniform mat4 fg_TextureMatrix;
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// aerial_perspective.glsl
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vec4 get_aerial_perspective(vec2 coord, float depth);
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void main()
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{
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gl_Position = osg_ModelViewProjectionMatrix * pos;
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vs_out.texcoord = vec2(fg_TextureMatrix * multitexcoord0);
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vs_out.vertex_normal = osg_NormalMatrix * normal;
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vs_out.view_vector = (osg_ModelViewMatrix * pos).xyz;
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vec2 coord = (gl_Position.xy / gl_Position.w) * 0.5 + 0.5;
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vs_out.ap_color = get_aerial_perspective(coord, length(vs_out.view_vector));
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}
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