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authorMichal Krol <michal@vmware.com>2009-12-17 22:37:15 +0100
committerMichal Krol <michal@vmware.com>2009-12-17 22:37:15 +0100
commit16c6dce013f089d072256652f012b3b604781bfd (patch)
tree077623708990a855f9be2dfeb3925f727e6207e7 /progs/glsl/CH11-bumpmaptex.frag
parent440fc5bf788201a265892ff2e12bf102e63a2896 (diff)
parent294bd53d4b6b15a6890599c46f14b205a3c738bf (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.frag47
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);
+}