diff options
| author | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
|---|---|---|
| committer | José Fonseca <jfonseca@vmware.com> | 2010-01-08 15:42:57 +0000 |
| commit | 080c40ab32b2abd6d8381b4a0cc143d36a1652b2 (patch) | |
| tree | e173767ebc5a82d81b9fc086449d915e29348976 /progs/glsl/CH11-bumpmaptex.frag | |
| parent | 9cdf6f025b2ed55cfb13dd09f870f01d0c7947d3 (diff) | |
| parent | a1de400e8de06a80ab140bb0fa950e990607572d (diff) | |
Merge remote branch 'origin/master' into lp-binning
Conflicts:
src/gallium/auxiliary/util/u_surface.c
src/gallium/drivers/llvmpipe/Makefile
src/gallium/drivers/llvmpipe/SConscript
src/gallium/drivers/llvmpipe/lp_bld_arit.c
src/gallium/drivers/llvmpipe/lp_bld_flow.c
src/gallium/drivers/llvmpipe/lp_bld_interp.c
src/gallium/drivers/llvmpipe/lp_clear.c
src/gallium/drivers/llvmpipe/lp_context.c
src/gallium/drivers/llvmpipe/lp_context.h
src/gallium/drivers/llvmpipe/lp_draw_arrays.c
src/gallium/drivers/llvmpipe/lp_jit.c
src/gallium/drivers/llvmpipe/lp_jit.h
src/gallium/drivers/llvmpipe/lp_prim_vbuf.c
src/gallium/drivers/llvmpipe/lp_setup.c
src/gallium/drivers/llvmpipe/lp_setup_point.c
src/gallium/drivers/llvmpipe/lp_state.h
src/gallium/drivers/llvmpipe/lp_state_blend.c
src/gallium/drivers/llvmpipe/lp_state_derived.c
src/gallium/drivers/llvmpipe/lp_state_fs.c
src/gallium/drivers/llvmpipe/lp_state_sampler.c
src/gallium/drivers/llvmpipe/lp_state_surface.c
src/gallium/drivers/llvmpipe/lp_tex_cache.c
src/gallium/drivers/llvmpipe/lp_tex_cache.h
src/gallium/drivers/llvmpipe/lp_tex_sample.h
src/gallium/drivers/llvmpipe/lp_tile_cache.c
Diffstat (limited to 'progs/glsl/CH11-bumpmaptex.frag')
| -rw-r--r-- | progs/glsl/CH11-bumpmaptex.frag | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/progs/glsl/CH11-bumpmaptex.frag b/progs/glsl/CH11-bumpmaptex.frag new file mode 100644 index 0000000000..b1f93b784d --- /dev/null +++ b/progs/glsl/CH11-bumpmaptex.frag @@ -0,0 +1,47 @@ +// +// Fragment shader for procedural bumps +// +// Authors: John Kessenich, Randi Rost +// +// Copyright (c) 2002-2006 3Dlabs Inc. Ltd. +// +// See 3Dlabs-License.txt for license information +// +// Texture mapping/modulation added by Brian Paul +// + +varying vec3 LightDir; +varying vec3 EyeDir; + +uniform float BumpDensity; // = 16.0 +uniform float BumpSize; // = 0.15 +uniform float SpecularFactor; // = 0.5 + +sampler2D Tex; + +void main() +{ + vec3 ambient = vec3(0.25); + vec3 litColor; + vec2 c = BumpDensity * gl_TexCoord[0].st; + vec2 p = fract(c) - vec2(0.5); + + float d, f; + d = p.x * p.x + p.y * p.y; + f = inversesqrt(d + 1.0); + + if (d >= BumpSize) + { p = vec2(0.0); f = 1.0; } + + vec3 SurfaceColor = texture2D(Tex, gl_TexCoord[0].st).xyz; + + vec3 normDelta = vec3(p.x, p.y, 1.0) * f; + litColor = SurfaceColor * (ambient + max(dot(normDelta, LightDir), 0.0)); + vec3 reflectDir = reflect(LightDir, normDelta); + + float spec = max(dot(EyeDir, reflectDir), 0.0); + spec *= SpecularFactor; + litColor = min(litColor + spec, vec3(1.0)); + + gl_FragColor = vec4(litColor, 1.0); +} |