diff options
Diffstat (limited to 'src/gallium/state_trackers/d3d1x/progs/d3d11spikysphere/d3d11spikysphere.hlsl')
| -rwxr-xr-x | src/gallium/state_trackers/d3d1x/progs/d3d11spikysphere/d3d11spikysphere.hlsl | 193 |
1 files changed, 193 insertions, 0 deletions
diff --git a/src/gallium/state_trackers/d3d1x/progs/d3d11spikysphere/d3d11spikysphere.hlsl b/src/gallium/state_trackers/d3d1x/progs/d3d11spikysphere/d3d11spikysphere.hlsl new file mode 100755 index 0000000000..1edf42f769 --- /dev/null +++ b/src/gallium/state_trackers/d3d1x/progs/d3d11spikysphere/d3d11spikysphere.hlsl @@ -0,0 +1,193 @@ +/**************************************************************************
+ *
+ * Copyright 2010 Luca Barbieri
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial
+ * portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
+ * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+ * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+ * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#define INPUT_PATCH_SIZE 3
+#define OUTPUT_PATCH_SIZE 3
+
+static const float PI = 3.141592653589793238462643f;
+
+cbuffer cb_frame
+{
+ float4x4 model;
+ float4x4 view_proj;
+ float disp_scale;
+ float disp_freq;
+ float tess_factor;
+};
+
+struct IA2VS
+{
+ float3 position : POSITION;
+};
+
+struct VS2HS
+{
+ float3 position : POSITION;
+};
+
+VS2HS vs(IA2VS input)
+{
+ VS2HS result;
+ result.position = input.position;
+ return result;
+}
+
+struct HS2DS_PATCH
+{
+ float tessouter[3] : SV_TessFactor;
+ float tessinner[1] : SV_InsideTessFactor;
+};
+
+struct HS2DS
+{
+ float3 position : POSITION;
+};
+
+HS2DS_PATCH hs_patch(InputPatch<VS2HS, INPUT_PATCH_SIZE> ip)
+{
+ HS2DS_PATCH result;
+
+ result.tessouter[0] = result.tessouter[1] = result.tessouter[2]
+ = result.tessinner[0] = tess_factor;
+ return result;
+}
+
+[domain("tri")]
+[partitioning("fractional_even")]
+[outputtopology("triangle_cw")]
+[outputcontrolpoints(OUTPUT_PATCH_SIZE)]
+[patchconstantfunc("hs_patch")]
+HS2DS hs(InputPatch<VS2HS, INPUT_PATCH_SIZE> p, uint i : SV_OutputControlPointID)
+{
+ HS2DS result;
+ result.position = p[i].position;
+ return result;
+}
+
+struct DS2PS
+{
+ float4 position : SV_POSITION;
+ float3 objpos : OBJPOS;
+ // float3 worldpos : WORLDPOS;
+ float3 objnormal : OBJNORMAL;
+ float3 worldnormal : WORLDNORMAL;
+};
+
+float3 dnormf_dt(float3 f, float3 dfdt)
+{
+ float ff = dot(f, f);
+ return (ff * dfdt - dot(f, dfdt) * f) / (ff * sqrt(ff));
+}
+
+float3 map(float3 p, float3 q, float3 r, float3 k)
+{
+ return normalize(p * k.x + q * k.y + r * k.z);
+}
+
+float3 dmap_du(float3 p, float3 q, float3 r, float3 k)
+{
+ return dnormf_dt(p * k.x + q * k.y + r * k.z, p);
+}
+
+float dispf(float v)
+{
+ return cos(v * disp_freq);
+}
+
+float ddispf(float v)
+{
+ return -sin(v * disp_freq) * disp_freq;
+}
+
+float disp(float3 k)
+{
+ return dispf(k.x) * dispf(k.y) * dispf(k.z);
+}
+
+float ddisp_du(float3 k)
+{
+ return ddispf(k.x) * dispf(k.y) * dispf(k.z);
+}
+
+float3 ddisp(float3 k)
+{
+ float3 f = float3(dispf(k.x), dispf(k.y), dispf(k.z));
+ return float3(ddispf(k.x) * f.y * f.z, ddispf(k.y) * f.z * f.x, ddispf(k.z) * f.x * f.y);
+}
+
+[domain("tri")]
+DS2PS ds(HS2DS_PATCH input,
+ float3 k : SV_DomainLocation,
+ const OutputPatch<HS2DS, OUTPUT_PATCH_SIZE> patch)
+{
+ DS2PS result;
+
+ float3 s = map(patch[0].position, patch[1].position, patch[2].position, k);
+ float3 d = 1.0 + disp(s) * disp_scale;
+ result.objpos = s * d;
+ result.objpos /= (1.0 + disp_scale);
+ float3 worldpos = mul(model, float4(result.objpos, 1.0f));
+ result.position = mul(view_proj, float4(worldpos, 1.0f));
+
+ float3 dd = ddisp(s) * disp_scale;
+
+ /*
+ float3 ds_du = dmap_du(patch[0].position, patch[1].position, patch[2].position, k);
+ float3 ds_dv = dmap_du(patch[1].position, patch[2].position, patch[0].position, k.yzx);
+ float3 ds_dw = dmap_du(patch[2].position, patch[0].position, patch[1].position, k.zxy);
+
+ float3 ds_dU = ds_du - ds_dw;
+ float3 ds_dV = ds_dv - ds_dw;
+
+ float3 dc_dU = s * dot(dd, ds_dU) + ds_dU * d;
+ float3 dc_dV = s * dot(dd, ds_dV) + ds_dV * d;
+ */
+
+ // this should be faster
+ float3 _u = normalize((abs(s.x) > abs(s.y)) ? float3(-s.z, 0, s.x) : float3(0, -s.z, s.y));
+ float3 _v = normalize(cross(s, _u));
+ float3 dc_dU = s * dot(dd, _u) + _u * d;
+ float3 dc_dV = s * dot(dd, _v) + _v * d;
+
+ result.objnormal = normalize(cross(dc_dU, dc_dV));
+ result.worldnormal = mul(model, result.objnormal);
+ return result;
+}
+
+float4 ps(DS2PS input) : SV_TARGET
+{
+ float3 pseudoambient = float3(0.4, 0.4, 0.6);
+ float3 diffuse = float3(0.6, 0.6, 0.4);
+ float3 light = normalize(float3(0, 1, -1));
+
+ float4 r;
+// r.xyz = normalize(input.objpos + 2 * input.objnormal);
+ r.xyz = pseudoambient * saturate(dot(normalize(input.objnormal), normalize(input.objpos)));
+ r.xyz += saturate(dot(light, normalize(input.worldnormal))) * diffuse;
+
+ r.w = 1;
+ return r;
+}
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