User:InsaneInGame
From Bo3b's School for Shaderhackers
Revision as of 20:50, 23 August 2014 by InsaneInGame (Talk | contribs)
Lesson 0. So far, so good. ;)
Lesson 1. Getting a feel for the shader hunting. :)
This is the first shader file. Pixel shader of entire ball.
//
// Generated by Microsoft (R) HLSL Shader Compiler 9.27.952.3022
//
// Parameters:
//
// float4 AmbientColorAndSkyFactor;
// float4 MinZ_MaxZRatio;
// sampler2D Texture2D_0;
// sampler2D Texture2D_1;
// sampler2D Texture2D_2;
// sampler2D Texture2D_3;
// sampler2D Texture2D_4;
// sampler2D Texture2D_5;
// sampler2D Texture2D_6;
// sampler2D Texture2D_7;
// sampler2D Texture2D_8;
// float UniformPixelScalar_23;
// float UniformPixelScalar_24;
// float UniformPixelScalar_5;
// float UniformPixelScalar_6;
// float4 UniformPixelVector_0;
// float4 UniformPixelVector_1;
// float4 UniformPixelVector_10;
// float4 UniformPixelVector_11;
// float4 UniformPixelVector_12;
// float4 UniformPixelVector_13;
// float4 UniformPixelVector_14;
// float4 UniformPixelVector_15;
// float4 UniformPixelVector_16;
// float4 UniformPixelVector_17;
// float4 UniformPixelVector_18;
// float4 UniformPixelVector_2;
// float4 UniformPixelVector_3;
// float4 UniformPixelVector_4;
// float4 UniformPixelVector_5;
// float4 UniformPixelVector_6;
// float4 UniformPixelVector_7;
// float4 UniformPixelVector_8;
// float4 UniformPixelVector_9;
//
//
// Registers:
//
// Name Reg Size
// ------------------------ ----- ----
// UniformPixelVector_0 c0 1
// MinZ_MaxZRatio c2 1
// UniformPixelVector_1 c4 1
// UniformPixelVector_2 c5 1
// UniformPixelVector_3 c6 1
// UniformPixelVector_4 c7 1
// UniformPixelVector_5 c8 1
// UniformPixelVector_6 c9 1
// UniformPixelVector_7 c10 1
// UniformPixelVector_8 c11 1
// UniformPixelVector_9 c12 1
// UniformPixelVector_10 c13 1
// UniformPixelVector_11 c14 1
// UniformPixelVector_12 c15 1
// UniformPixelVector_13 c16 1
// UniformPixelVector_14 c17 1
// UniformPixelVector_15 c18 1
// UniformPixelVector_16 c19 1
// UniformPixelVector_17 c20 1
// UniformPixelVector_18 c21 1
// UniformPixelScalar_5 c22 1
// UniformPixelScalar_6 c23 1
// UniformPixelScalar_23 c24 1
// UniformPixelScalar_24 c25 1
// AmbientColorAndSkyFactor c26 1
// Texture2D_0 s0 1
// Texture2D_1 s1 1
// Texture2D_2 s2 1
// Texture2D_3 s3 1
// Texture2D_4 s4 1
// Texture2D_5 s5 1
// Texture2D_6 s6 1
// Texture2D_7 s7 1
// Texture2D_8 s8 1
//
ps_3_0
def c1, 0.75, -9.99999997e-007, 6, -0.333299994
def c3, 0.666700006, 1.5, 0.0250000004, 4
def c27, 5, 0.5, 6.28318548, -3.14159274
def c28, 0.200000003, 0.100000001, 10, 0.800000012
def c29, 0.300000012, 0.589999974, 0.109999999, 0.600000024
def c30, 1.5, 0.649999976, 0, 0
def c31, 0.5, -0.5, 8, 17
def c32, 2, -1, -0.5, 0
def c33, 1.25, 1, 0, 0
def c34, 9, 0.5, 0.200000003, 0.100000001
def c35, 0.450000018, 100, 90, 0.100000001
def c36, 0.816496611, 0.577350259, 0, 0
def c37, -0.707106769, -0.408248305, 0.577350259, 0.707106769
dcl_texcoord2_pp v0.xyz
dcl_texcoord3_pp v1.xyz
dcl_texcoord5 v2.w
dcl_texcoord6 v3.xyz
dcl_color v4.xyz
dcl_color1 v5
dcl_texcoord v6
dcl_2d s0
dcl_2d s1
dcl_2d s2
dcl_2d s3
dcl_2d s4
dcl_2d s5
dcl_2d s6
dcl_2d s7
dcl_2d s8
mul r0.xy, c1.x, v6
texld r0, r0, s8
add r0.y, r0_abs.x, c1.y
pow r1.x, r0_abs.x, c25.x
cmp r0.y, r0.y, r1.x, c32.w
lrp r1.x, c24.x, r0.y, r0.x
mul r0.x, r1.x, c24.x
mul_sat r0.x, r0.x, c1.z
add r0.x, r0.x, c1.w
mov r1, c32
add r0.y, r1.y, c24.x
cmp r0, r0.y, c3.x, r0.x
texkill r0
mov r0.y, c3.y
mad r0.xy, v6, r0.y, c11
texld r0, r0, s2
mad r0.xz, v6.xyyw, r1.x, c12.xyyw
texld r2, r0.xzzw, s2
mul r0.x, r2.y, c3.z
mad r0.x, r0.y, r2.y, r0.x
add r0.yz, c9.xxyw, v6.xxyw
texld r2, r0.yzzw, s2
mad r0.yz, v6.xxyw, -r1.z, c10.xxyw
texld r3, r0.yzzw, s2
mul r0.y, r2.x, r3.x
mad r0.x, r0.y, c3.w, r0.x
mul r0.xyz, r0.x, c8
mov r1.x, c23.x
mul r0.w, r1.x, c13.x
mad r0.w, r0.w, c27.x, c27.y
frc r0.w, r0.w
mad r0.w, r0.w, c27.z, c27.w
sincos r2.y, r0.w
mul r2.xyz, r0, r2.y
mad r0.xyz, r2, c32.z, r0
nrm_pp r2.xyz, v4
nrm_pp r3.xyz, v5
mul_pp r4.xyz, r2.yzxw, r3.zxyw
mad_pp r4.xyz, r3.yzxw, r2.zxyw, -r4
mul r4.xyz, r4, v5.w
mov r5.y, r4.z
dp3 r4.y, r4, c19
mov_pp r5.x, r2.z
dp3 r4.x, r2, c19
mov_pp r5.z, r3.z
dp3 r0.w, r5, r5
rsq r0.w, r0.w
mul r0.w, r0.w, r5.z
dp3 r4.z, r3, c19
mad r0.w, r0.w, c29.w, c29.w
mul r1.x, r0_abs.w, r0_abs.w
add r0.w, r0_abs.w, c1.y
mul r1.x, r1.x, r1.x
mul r1.x, r1.x, r1.x
mul r1.x, r1.x, c3.w
cmp r0.w, r0.w, r1.x, c32.w
min r1.x, r0.w, c28.w
dp3 r0.w, r4, r4
rsq r0.w, r0.w
mul r0.w, r0.w, r4.z
mad r0.w, r0.w, c31.y, c31.x
add r2.x, r0_abs.w, c1.y
mul r0.w, r0_abs.w, r0_abs.w
mul r0.w, r0.w, r0.w
mul r0.w, r0.w, r0.w
mul r0.w, r0.w, c3.w
cmp r0.w, r2.x, r0.w, c32.w
min r2.x, r0.w, c28.w
add r0.w, -r2.x, -c32.y
mad r0.w, c20.x, r0.w, r2.x
mad r2.xy, v6.wzzw, c31.x, c31.y
dp2add r3.x, c17, r2, r1.w
dp2add r3.y, c18, r2, r1.w
add r2.xy, r3, -c32.z
texld r2, r2, s6
add r2.xyz, r2, c30
mov r3.yzw, c32_abs.xyxw
texld r4, v6, s3
dp3 r2.w, r4, c29
mul r3.x, r2.w, c28.z
mul r2.xyz, r2, r3.xyxw
mul r2.xyz, r2, r3.zxww
mul r2.xyz, r0.w, r2
add r3.xy, v6, v6
nrm r5.xyz, v3
mad r3.xy, r5, c35.x, r3
texld r3, r3, s4
mul r3.xyz, r3.y, c35.yzzw
max r6.xyz, r4_abs, -c1.y
log r7.x, r6.x
log r7.y, r6.y
log r7.z, r6.z
mul r6.xyz, r7, c3.y
exp r7.x, r6.x
exp r7.y, r6.y
exp r7.z, r6.z
mad r3.xyz, r3, r7, r4
texld r6, v6, s5
mul r3.xyz, r3, r6.x
mul r7.xyz, r4, c28.xyyw
mad r3.xyz, r3, c35.w, r7
mad r3.xyz, r6.z, c15, r3
mad r2.xyz, c16.x, r2, r3
mul r3.xyz, r4, c32_abs
mad r2.xyz, r1.x, r3, r2
mul r0.w, r4.w, c21.x
mad r2.xyz, r0.w, c32_abs.xzww, r2
mad r0.xyz, c14.x, r0, r2
add_pp r0.xyz, r0, c0
mad r0.w, r5.z, -c33.x, c33.y
cmp r0.w, r5.z, r0.w, -c32.y
mul r1.x, r0_abs.w, r0_abs.w
mul r1.x, r1.x, r1.x
mul r1.x, r0_abs.w, r1.x
add r0.w, r0_abs.w, c1.y
mad r2.xyz, r4, c34.x, c34.yzww
mul r2.xyz, r1.x, r2
cmp r2.xyz, r0.w, r2, c32.w
add r2.xyz, r2, r4
add r3.xyz, -r1.y, -c0
mul_pp r2.xyz, r2, r3
mul_pp r3.xyz, r2, v0
mad r1.xy, c22.x, v6, r1.z
dp2add r4.x, c5, r1, r1.w
dp2add r4.y, c6, r1, r1.w
add r1.xy, r4, -c32.z
texld r1, r1, s1
mad r1.xyz, r1, c32.x, c32.y
mul r1.xyz, r1, c7
texld r4, v6, s0
mad r4.xyz, r4, c32.x, c32.y
mad_pp r1.xyz, r4, c4, r1
nrm_pp r4.xyz, r1
dp3 r0.w, r4, r5
mul r1.xyz, r0.w, r4
mad r1.xyz, r1, c32.x, -r5
dp2add_sat_pp r5.x, r1.yzzw, c36, c36.z
dp3_sat_pp r5.y, r1, c37
dp3_sat_pp r5.z, r1.yzxw, c37.yzww
max r1.xyz, r5, -c1.y
log r5.x, r1.x
log r5.y, r1.y
log r5.z, r1.z
mad_pp r0.w, r6.x, c31.z, c31.w
mul r1.xyz, r6.y, c32_abs.xzww
mul r5.xyz, r5, r0.w
exp_pp r6.x, r5.x
exp_pp r6.y, r5.y
exp_pp r6.z, r5.z
dp3_pp r0.w, v1, r6
texld r5, v6, s7
mad_pp r1.xyz, r5, c3.w, r1
mul_pp r1.xyz, r1, v0
mul_pp r1.xyz, r0.w, r1
dp2add_sat_pp r5.x, r4.yzzw, c36, c36.z
dp3_sat_pp r5.y, r4, c37
dp3_sat_pp r5.z, r4.yzxw, c37.yzww
mul_pp r4.xyz, r5, r5
max_pp r5.xyz, r4, -c1.y
dp3_pp r0.w, v1, r5
mad_pp r1.xyz, r3, r0.w, r1
add_pp r0.xyz, r0, r1
mad_pp oC0.xyz, r2, c26, r0
rcp r0.x, v2.w
mad_pp oC0.w, c2.x, r0.x, c2.y
// approximately 188 instruction slots used (12 texture, 176 arithmetic)
Lesson 2. Disable bloom effect on the ball (make transparent)
Note to self : This was remarkable! I also tried to disable the subtle glow on other light sources (pixel shader 85), just to see if I understood the code, instructions, and theory correctly. I also try to memorize codes and parameters. So far, so good.
Screenshot before disabling the bloom effect:
Screenshot after disabling the bloom effect:
Shader file editing :
// Pixel Shader responsible for bloom effect on ball
//
// Generated by Microsoft (R) HLSL Shader Compiler 9.27.952.3022
//
// Parameters:
//
// sampler2D Texture2D_0;
// float UniformPixelScalar_7;
// float4 UniformPixelVector_0;
// float4 UniformPixelVector_3;
// float4 UniformPixelVector_4;
// float4 UniformPixelVector_5;
// float4 UniformPixelVector_6;
//
//
// Registers:
//
// Name Reg Size
// -------------------- ----- ----
// UniformPixelVector_0 c0 1
// UniformPixelVector_3 c4 1
// UniformPixelVector_4 c5 1
// UniformPixelVector_5 c6 1
// UniformPixelVector_6 c7 1
// UniformPixelScalar_7 c8 1
// Texture2D_0 s0 1
//
ps_3_0
def c1, 0.5, 1, -0.5, 0
def c2, 3, 0, 0, 0
dcl_texcoord v0.xy
dcl_texcoord1 v1
dcl_texcoord2 v2.y
dcl_texcoord4 v3.w
dcl_2d s0
add r0.xy, c1.z, v0
mov r0.w, c1.w
dp2add r1.x, c5, r0, r0.w
dp2add r1.y, c6, r0, r0.w
add r0.xy, r1, c1.x
texld r0, r0, s0
mad_sat r0.y, v2.y, -c1.x, c1.y
mul r0.yzw, r0.y, v1.xxyz
mul r0.yzw, r0, v1.w
mul_sat r0.xyz, r0.yzww, r0.x
mul r1.xyz, r0, c4
mad r0.xyz, c4, -r0, r0
mad r0.xyz, c8.x, r0, r1
mul r0.xyz, r0, c4.w
mul r0.xyz, r0, c7
mov r1.x, c2.x
mad_pp r0.xyz, r0, r1.x, c0
mul_pp oC0.xyz, r0, v3.w
mov oC0.w, c1.w
// Remove annoying bloom effect on ball (make all pixels invisible)
mov oC0.xyzw, c1.wwww
// approximately 21 instruction slots used (1 texture, 20 arithmetic)
