Quote:Original post by Shael
Is it wise to scale the terrain vertices? or if creating a 256x256 heightmap it should stay that size? I thought maybe scaling it could create the illusion of a larger terrain but I'm thinking perhaps its better to leave the scale 1:1.

Quote:Original post by Shael
I thought that having it 1:1 would mean less stretching on the texture because if the texture was the same size as the terrain it would map exactly pixel to pixel.

Quote:I am using a pixel shader for this and I just realised I can simply tile the splats instead of stretching them too which gives more detail for the splats.

Quote: for some reason if I paint on my mask in photoshop with a red brush with say 50% opacity, then the splat assigned to the red channel shows on the terrain as if i painted with 100% solid colour. It has no fade out or anything

shared float4x4 g_mWorldViewProj	: WORLD_VIEW_PROJ;texture BaseTex;texture MaskTex;texture Splat1;texture Splat2;texture Splat3;texture Splat4;sampler BaseSampler = sampler_state{	Texture = (BaseTex);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};sampler MaskSampler = sampler_state{	Texture = (MaskTex);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};sampler RSampler = sampler_state{	Texture = (Splat1);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};sampler GSampler = sampler_state{	Texture = (Splat2);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};sampler BSampler = sampler_state{	Texture = (Splat3);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};sampler ASampler = sampler_state{	Texture = (Splat4);	MIPFILTER = LINEAR;	MAGFILTER = LINEAR;	MINFILTER = LINEAR;};struct VS_INPUT {	float4 Position			: POSITION0;	float2 TexCoord0		: TEXCOORD0;    };struct PS_INPUT  {	float4 Color			: COLOR0;};VS_INPUT TerrainVS (VS_INPUT In){	VS_INPUT Out;		Out.Position = mul(In.Position, g_mWorldViewProj);	Out.TexCoord0 = In.TexCoord0;		return Out;}PS_INPUT TerrainSimplePS (VS_INPUT In){	PS_INPUT Out;		Out.Color = tex2D(BaseSampler, In.TexCoord0);		return Out;}PS_INPUT TerrainSplatPS (VS_INPUT In){	PS_INPUT Out;	vector blender = tex2D(MaskSampler, In.TexCoord0);        	float RWeight = blender.r;    	float GWeight = blender.g;    	float BWeight = blender.b;	float AWeight = blender.a;   	vector BaseColour = tex2D(BaseSampler, In.TexCoord0);    	vector RColour = tex2D(RSampler, In.TexCoord0 * 4);    	vector GColour = tex2D(GSampler, In.TexCoord0 * 4);    	vector BColour = tex2D(BSampler, In.TexCoord0 * 4);	vector AColour = tex2D(ASampler, In.TexCoord0 * 4);	// combine texel colors    	float4 oneminusr = 1.0 - RWeight;   	float4 oneminusg = 1.0 - GWeight;    	float4 oneminusb = 1.0 - BWeight;	    	vector l = RWeight * RColour + oneminusr * BaseColour;    	vector m = GWeight * GColour + oneminusg * l;    	vector n = BWeight * BColour + oneminusb * m;	Out.Color = n;		return Out;}//--------------------------------------------------------------------------------------// Techniques//--------------------------------------------------------------------------------------technique TerrainSimple{	pass pass0	{		VertexShader = compile vs_2_0 TerrainVS();        	PixelShader = compile ps_2_0 TerrainSimplePS();	}}technique TerrainSplat{	pass pass0	{		VertexShader = compile vs_2_0 TerrainVS();        	PixelShader = compile ps_2_0 TerrainSplatPS();	}}