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Update hq program

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This commit is contained in:
Miloslav Číž 2019-06-17 22:25:23 +02:00
parent c27f3575ba
commit 83a1a3b51d
1 changed files with 57 additions and 5 deletions
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62
programs/hqOffline.c
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@ -1,3 +1,12 @@
/*
Example program for small3dlib. This is an offline (non-realtime) program
which creates an animation of a scene with more complex shaders. The
animation is output in image files (PPM format).
author: Miloslav Ciz
licene: CC0 1.0
*/
#define S3L_RESOLUTION_X 800 #define S3L_RESOLUTION_X 800
#define S3L_RESOLUTION_Y 600 #define S3L_RESOLUTION_Y 600
@ -82,6 +91,8 @@ S3L_Vec4 toLightDirection;
S3L_Vec4 n0, n1, n2, v0, v1, v2; S3L_Vec4 n0, n1, n2, v0, v1, v2;
S3L_Unit uv0[2], uv1[2], uv2[2];
void sampleTexture(uint8_t *texture, int w, int h, float x, float y, uint8_t color[3]) void sampleTexture(uint8_t *texture, int w, int h, float x, float y, uint8_t color[3])
{ {
// we do linear interpolation of the samples // we do linear interpolation of the samples
@ -193,6 +204,28 @@ void drawPixel(S3L_PixelInfo *p)
n2.z = normals[index]; n2.z = normals[index];
v2.z = scene.models[p->modelIndex].vertices[index]; v2.z = scene.models[p->modelIndex].vertices[index];
if (p->modelIndex != WATER_MODEL_INDEX &&
p->modelIndex != ISLAND_MODEL_INDEX)
{
index = treeUVIndices[p->triangleIndex * 3] * 2;
uv0[0] = treeUVs[index];
index++;
uv0[1] = treeUVs[index];
index = treeUVIndices[p->triangleIndex * 3 + 1] * 2;
uv1[0] = treeUVs[index];
index++;
uv1[1] = treeUVs[index];
index = treeUVIndices[p->triangleIndex * 3 + 2] * 2;
uv2[0] = treeUVs[index];
index++;
uv2[1] = treeUVs[index];
}
previousTriangle = p->triangleIndex; previousTriangle = p->triangleIndex;
previousModel = p->modelIndex; previousModel = p->modelIndex;
} }
@ -236,7 +269,7 @@ void drawPixel(S3L_PixelInfo *p)
normal.x += S3L_sin(dist) / 16; normal.x += S3L_sin(dist) / 16;
normal.z += S3L_cos(dist) / 16; normal.z += S3L_cos(dist) / 16;
} }
else // island else if (p->modelIndex == ISLAND_MODEL_INDEX)
{ {
diffuseIntensity = 0.5; diffuseIntensity = 0.5;
specularIntensity = 0.7; specularIntensity = 0.7;
@ -260,6 +293,15 @@ void drawPixel(S3L_PixelInfo *p)
normal.x += (((int16_t) textureNormal[0]) - 128); normal.x += (((int16_t) textureNormal[0]) - 128);
normal.z += (((int16_t) textureNormal[1]) - 128); normal.z += (((int16_t) textureNormal[1]) - 128);
} }
else // tree
{
diffuseIntensity = 0.6;
specularIntensity = 0.2;
specularPower = 20.0;
u = S3L_interpolateBarycentric(uv0[0],uv1[0],uv2[0],p->barycentric) / ((float) S3L_FRACTIONS_PER_UNIT);
v = S3L_interpolateBarycentric(uv0[1],uv1[1],uv2[1],p->barycentric) / ((float) S3L_FRACTIONS_PER_UNIT);
}
S3L_normalizeVec3(&normal); S3L_normalizeVec3(&normal);
S3L_reflect(toLightDirection,normal,&reflected); S3L_reflect(toLightDirection,normal,&reflected);
@ -302,7 +344,7 @@ void drawPixel(S3L_PixelInfo *p)
color[1] = interpolate(previousColor[1],color[1] * light,transparency); color[1] = interpolate(previousColor[1],color[1] * light,transparency);
color[2] = interpolate(previousColor[2],color[2] * light,transparency); color[2] = interpolate(previousColor[2],color[2] * light,transparency);
} }
else // island else if (p->modelIndex == ISLAND_MODEL_INDEX)
{ {
uint8_t textureColor[3]; uint8_t textureColor[3];
uint8_t textureColor2[3]; uint8_t textureColor2[3];
@ -318,6 +360,16 @@ void drawPixel(S3L_PixelInfo *p)
color[1] = textureColor[1] * light; color[1] = textureColor[1] * light;
color[2] = textureColor[2] * light; color[2] = textureColor[2] * light;
} }
else // tree
{
uint8_t textureColor[3];
sampleTexture(treeTexture,TREE_TEXTURE_WIDTH,TREE_TEXTURE_HEIGHT,u,v,textureColor);
color[0] = textureColor[0] * light;
color[1] = textureColor[1] * light;
color[2] = textureColor[2] * light;
}
frameBuffer[index] = S3L_clamp(color[0],0,255); frameBuffer[index] = S3L_clamp(color[0],0,255);
frameBuffer[index + 1] = S3L_clamp(color[1],0,255); frameBuffer[index + 1] = S3L_clamp(color[1],0,255);
@ -412,9 +464,9 @@ int main()
S3L_Unit scale = S3L_FRACTIONS_PER_UNIT / 4; S3L_Unit scale = S3L_FRACTIONS_PER_UNIT / 4;
S3L_setTransform3D(0,S3L_FRACTIONS_PER_UNIT * 2,0,0,0,0,scale,scale,scale,&(models[0].transform)); S3L_setTransform3D(0,1.2 * S3L_FRACTIONS_PER_UNIT,-1.5 * S3L_FRACTIONS_PER_UNIT,0,0,0,scale,scale,scale,&(models[0].transform));
S3L_setTransform3D(S3L_FRACTIONS_PER_UNIT,S3L_FRACTIONS_PER_UNIT * 2,0,0,0,0,scale,scale,scale,&(models[1].transform)); S3L_setTransform3D(0.95 * S3L_FRACTIONS_PER_UNIT,1.3 * S3L_FRACTIONS_PER_UNIT,0,0,0,0,scale,scale * 1.3,scale,&(models[1].transform));
S3L_setTransform3D(-S3L_FRACTIONS_PER_UNIT,S3L_FRACTIONS_PER_UNIT * 2,0,0,0,0,scale,scale,scale,&(models[2].transform)); S3L_setTransform3D(-2 * S3L_FRACTIONS_PER_UNIT,0.8 * S3L_FRACTIONS_PER_UNIT,1.5 * S3L_FRACTIONS_PER_UNIT,0,0,0,scale,scale,scale,&(models[2].transform));
S3L_initModel3D( S3L_initModel3D(
terrainVertices, terrainVertices,