diff options
author | Michal Krol <michal@vmware.com> | 2009-12-17 22:37:15 +0100 |
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committer | Michal Krol <michal@vmware.com> | 2009-12-17 22:37:15 +0100 |
commit | 16c6dce013f089d072256652f012b3b604781bfd (patch) | |
tree | 077623708990a855f9be2dfeb3925f727e6207e7 /progs/glsl/CH11-bumpmaptex.frag | |
parent | 440fc5bf788201a265892ff2e12bf102e63a2896 (diff) | |
parent | 294bd53d4b6b15a6890599c46f14b205a3c738bf (diff) |
Merge branch 'master' into pipe-format-simplify
Conflicts:
src/gallium/auxiliary/draw/draw_pipe_aaline.c
src/gallium/auxiliary/draw/draw_pipe_pstipple.c
src/gallium/auxiliary/util/u_blit.c
src/gallium/auxiliary/util/u_gen_mipmap.c
src/gallium/auxiliary/util/u_surface.c
src/gallium/auxiliary/vl/vl_mpeg12_mc_renderer.c
src/gallium/drivers/cell/ppu/cell_texture.c
src/gallium/drivers/llvmpipe/lp_texture.c
src/gallium/drivers/r300/r300_emit.c
src/gallium/drivers/r300/r300_texture.c
src/gallium/drivers/softpipe/sp_texture.c
src/gallium/drivers/softpipe/sp_tile_cache.c
src/gallium/drivers/svga/svga_state_vs.c
src/gallium/include/pipe/p_format.h
src/gallium/state_trackers/dri/dri_drawable.c
src/gallium/state_trackers/egl/egl_surface.c
src/gallium/state_trackers/python/p_device.i
src/gallium/state_trackers/python/st_softpipe_winsys.c
src/gallium/state_trackers/vega/api_filters.c
src/gallium/state_trackers/vega/image.c
src/gallium/state_trackers/vega/mask.c
src/gallium/state_trackers/vega/paint.c
src/gallium/state_trackers/vega/renderer.c
src/gallium/state_trackers/vega/vg_tracker.c
src/gallium/state_trackers/xorg/xorg_crtc.c
src/gallium/state_trackers/xorg/xorg_dri2.c
src/gallium/state_trackers/xorg/xorg_exa.c
src/gallium/state_trackers/xorg/xorg_renderer.c
src/gallium/state_trackers/xorg/xorg_xv.c
src/gallium/state_trackers/xorg/xvmc/surface.c
src/gallium/winsys/drm/nouveau/drm/nouveau_drm_api.c
src/gallium/winsys/drm/radeon/core/radeon_buffer.c
src/gallium/winsys/egl_xlib/sw_winsys.c
src/gallium/winsys/g3dvl/xlib/xsp_winsys.c
src/gallium/winsys/gdi/gdi_llvmpipe_winsys.c
src/gallium/winsys/gdi/gdi_softpipe_winsys.c
src/gallium/winsys/xlib/xlib_cell.c
src/gallium/winsys/xlib/xlib_llvmpipe.c
src/gallium/winsys/xlib/xlib_softpipe.c
src/mesa/state_tracker/st_cb_fbo.c
src/mesa/state_tracker/st_cb_texture.c
src/mesa/state_tracker/st_texture.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); +} |